CN103228996B - For controlling the apparatus and method of the aperture of the valve in heating ventilation and air-conditioning system - Google Patents
For controlling the apparatus and method of the aperture of the valve in heating ventilation and air-conditioning system Download PDFInfo
- Publication number
- CN103228996B CN103228996B CN201180055591.7A CN201180055591A CN103228996B CN 103228996 B CN103228996 B CN 103228996B CN 201180055591 A CN201180055591 A CN 201180055591A CN 103228996 B CN103228996 B CN 103228996B
- Authority
- CN
- China
- Prior art keywords
- per unit
- valve
- gradients
- aperture
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 25
- 238000010438 heat treatment Methods 0.000 title claims description 17
- 238000004378 air conditioning Methods 0.000 title claims description 12
- 238000009423 ventilation Methods 0.000 title claims description 12
- 239000012530 fluid Substances 0.000 claims abstract description 54
- 238000005259 measurement Methods 0.000 claims description 4
- 102220293834 rs1553603207 Human genes 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 description 11
- 238000012546 transfer Methods 0.000 description 10
- 238000004590 computer program Methods 0.000 description 8
- 238000013500 data storage Methods 0.000 description 5
- 238000001595 flow curve Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 102220559234 Voltage-dependent L-type calcium channel subunit alpha-1C_S30H_mutation Human genes 0.000 description 2
- 102220358403 c.89C>G Human genes 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 102220076183 rs796052896 Human genes 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
- Thermal Sciences (AREA)
Abstract
In order to control the aperture of the valve (10) in HVAC system (100), to regulate the fluid flow <i> φ </i><iGreatT.Gre aT.GT by the thermal energy converter (2) of HVAC system (100), </i> and adjust the amount E of energy exchanged by thermal energy converter (2), and determine energy per unit flow gradients (A), and the aperture of control valve (10) is carried out according to energy per unit flow gradients (A).Determine energy per unit flow gradients (A) as follows: measure the flow <i> φ by valve (10) at continuous time point
1</i>, <i> φ
2</i>, determines the amount <i>E of the energy exchanged by thermal energy converter (2) at these time points
1</i>, <i>E
2</i>, and according to flow <i> φ
1</i>, <i> φ
2</i> and the energy <i>E exchanged
1</i>, <i>E
2</i> calculates energy per unit flow gradients (B).Energy per unit flow gradients (A) can dynamically be determined, and is used as the basis of the slope threshold value of setting thermal energy converter (2), makes without the need to storing fixing threshold value.
Description
Technical field
The present invention relates to the apparatus and method of the aperture for controlling the valve in heating ventilation and air-conditioning (HVAC) system.The aperture that specifically, the present invention relates to the valve controlled in HVAC system is to regulate the fluid flow by the thermal energy converter of HVAC system and to adjust method and the control device of the amount of the energy exchanged by thermal energy converter thus.
Background technology
By regulating the fluid flow by the thermal energy converter of HVAC system, the amount of the energy exchanged by thermal energy converter can be adjusted, such as, can adjust and transmit the amount of the energy in the room heating or cool in building by heat exchanger or adjustment aspirates the amount of energy for cooling object by cooler.When the fluid conveying of the fluid circuit by HVAC system is driven by one or more pump, usually by such as manually or utilize actuator to change the aperture of valve or adjust flux is carried out in position.The efficiency of known thermal energy converter reduces when high flow rate, and when high flow rate, fluid breaks through thermal energy converter with the speed increased, and the correspondence of heat exchange can not be caused to increase.
US6,352,106 describe a kind of self balance valve, and it has the temperature sensor of the temperature for measuring the fluid through valve.According to US6,352,106, carry out the open range of dynamically regulating valve according to the temperature measured, and therefore adjust maximum opening.Based on stored temperature threshold, current fluid temperature and the position command signal from load controller, carry out the aperture of control valve.Specifically, utilize positioner, based on the temperature threshold stored at positioner place, current fluid temperature and the difference between the fluid temperature (F.T.) and current fluid temperature of first pre-test, periodically set the open range of valve.US6,352,106 also describe the alternate embodiment with two temperature sensors, and temperature sensor is placed on supply line and another temperature sensor is placed on return line, the actual differential temperature on sensing lead and thermal energy converter.According to US6,352,106, in this alternate embodiment, threshold temperature is according to the determined threshold value differential temperature striding across load of the system requirements of load.Therefore, US6,352,106 changes described based on the differential temperature in the change of fluid temperature (F.T.) or load control flow.Therefore, respectively based on determined variations in temperature and fixing threshold temperature or threshold value differential temperature (its must be limit in advance and be stored in the positioner of valve) compare and control flow.Therefore, in order to avoid the incorrect of valve and inefficient setting, in the initial set-up time of system with whenever replacing thermal energy converter with new model, must guarantee that stored threshold temperature or threshold value differential temperature mate type and the design parameter of the thermal energy converter used in HVAC system respectively.
Document DE102009004319A1 discloses a kind of method for operating heating or cooling system, wherein, control supply temperature and the temperature difference returned between temperature or only control to return temperature, thus realize the hydro-cushion based on temperature of each heat exchanger of heating or cooling system, and when each change operating condition, readjust and optimize described balance.Although use supply temperature and the temperature difference returned between temperature controls, but and unexposed flowmeter, also the measurement of the unexposed energy fluence by heat exchanger, do not determine the functional dependence of the mass flow of energy fluence and heating or cooling medium, do not use the gradient of such energy fluence/mass flow function as controling parameters yet yet.
Summary of the invention
The object of the present invention is to provide a kind of method and control device of the aperture for controlling the valve in HVAC system, the method and control device do not have at least some shortcoming in the shortcoming of prior art.Especially, the object of the present invention is to provide a kind of method and control device of the aperture for controlling the valve in HVAC system, and do not require to store fixing threshold temperature or threshold value differential temperature respectively.
According to the present invention, these objects are realized by the feature of independent claims.In addition, from dependent claims and description, other advantageous embodiment is drawn.
According to the present invention, achieve object mentioned above especially, because the aperture (or position) in order to control the valve in HVAC system, to regulate the fluid flow of the thermal energy converter by HVAC system
φand adjust the amount of the energy exchanged by thermal energy converter thus
e, and determine energy per unit flow gradients
, and according to energy per unit flow gradients
carry out the aperture (or position) of control valve.Therefore, according to the slope of energy per unit flow curve, that is, according to the amount of the energy exchanged by thermal energy converter of the function as the fluid flow by thermal energy converter
e, carry out the aperture of control valve.Although this energy per unit flow gradients (slope)
may depend on the type of thermal energy converter to a certain extent, but for the thermal energy converter of particular type, its feature can dynamically and determine quite efficiently.Specifically, for the thermal energy converter of particular type, can in the substantial linear scope of energy per unit flow curve, easily and determine its characteristic energy per unit flow gradients (slope) efficiently
, thermal energy converter positive energy exchange efficiently in this range.Therefore, for specific thermal energy converter, can based on the energy per unit flow gradients (slope) determined for thermal energy converter
, carry out dynamically slope calculations threshold value.Therefore without the need to storing fixing threshold value.
In a preferred embodiment, energy per unit flow gradients is determined as follows
: measure the flow by valve at very first time point
φ 1, and determine the amount of the energy exchanged by thermal energy converter at this very first time point
e 1 ; At the second time point subsequently, measure the flow by valve
φ 2 , and determine the amount of the energy exchanged by thermal energy converter at this second time point
e 2 ; And according to the flow determined very first time point and the second time point
φ 1 ,
φ 2 and positive energy exchange
e 1 ,
e 1 , calculate energy per unit flow gradients
.
In one embodiment, the amount of the energy exchanged by thermal energy converter is determined as follows: measure the flow by valve
φ, determine the input temp of the fluid entering thermal energy converter
t in with the output temperature of fluid leaving thermal energy converter
t out between the temperature difference
, and based on passing through flow φ and the temperature difference of valve
calculate the amount of the energy exchanged by thermal energy converter
.
In another embodiment, transfer efficiency is considered as follows: measure for carrying fluid by the conveying capacity of HVAC system
e t ; Determine the amount E of the energy exchanged by thermal energy converter; Based on conveying capacity
e t with the amount of the energy exchanged by thermal energy converter
edetermine energy differences
, by energy differences
e b compare with efficiency threshold; And according to the described aperture relatively carrying out control valve.
When the thermal energy converter of HVAC system be for heat or the heat exchanger of cool room, the aperture of control valve is to regulate the fluid flow by the heat exchanger of HVAC system
φ, be, when increasing the aperture of valve, to determine energy per unit flow gradients
; And pass through energy per unit flow gradients
compare with slope threshold value and work as energy per unit flow gradients
lower than the increase of stop opening during slope threshold value, carry out the aperture of control valve.
When the thermal energy converter of HVAC system is cooler, the aperture of control valve is to regulate the fluid flow by the cooler of HVAC system
φ, be, when increasing or reduce the aperture of valve, to determine energy per unit flow gradients
; And pass through energy per unit flow gradients
compare with lower slope threshold value and upper slope threshold value, and when energy per unit flow gradients
lower than lower slope threshold value or higher than reduction or the increase of distinguishing stop opening during upper slope threshold value, carry out the aperture of control valve.
In one embodiment, determine slope threshold value as follows: when valve is opened from closed position, determine the energy per unit flow gradients of initial time point
, and based on the energy per unit flow gradients determined at initial time point
set slope threshold value.Such as, slope threshold value is defined as initial time point determined energy per unit flow gradients
constrain percentage.Therefore, lower slope threshold value and/or upper slope threshold value are defined as initial time point determined energy per unit flow gradients
constrain percentage.In initial time point determined energy per unit flow gradients
represent the characteristic energy per unit flow gradients of the thermal energy converter in the substantial linear scope by the thermal energy converter energy per unit flow curve of positive energy exchange efficiently
.
In another embodiment, following calibration control signal level, described control signal level is for controlling the actuator of the valve opening valve: control signal is set as the restriction maximum for valve being placed into maximum opening position, is determining energy per unit flow gradients
time, reduce the value of control signal to reduce the aperture of valve, and the maximum of control signal is distributed to energy per unit flow gradients
become the aperture setting of the valve being equal to or greater than slope threshold value.
Except controlling the method for the aperture of the valve in HVAC system, the invention still further relates to the control device of the aperture for control valve, wherein control device comprises: gradients setup device, is configured to determine energy per unit flow gradients
; And control module, be configured to according to energy per unit flow gradients
carry out the aperture of control valve.
And, the invention still further relates to the computer program comprised for the computer program code controlled one or more processors of control device, wherein control device is used for the aperture of control valve, and computer program stores the computer program of the tangible computer computer-readable recording medium of this computer program code above preferably comprising.Specifically, computer program code is configured to control this control device, makes control device determination energy per unit flow gradients
, and according to energy per unit flow gradients
carry out the aperture of control valve.
Accompanying drawing explanation
The present invention is illustrated in greater detail by way of example with reference to accompanying drawing, in the accompanying drawings:
Fig. 1 represents the block diagram schematically showing HVAC system, and HVAC system has fluid circuit and control device, and fluid circuit comprises pump, valve and thermal energy converter, and control device is used for the aperture of control valve to regulate the amount of the energy exchanged by thermal energy converter.
Fig. 2 represents the flow chart of the exemplary series of steps of the aperture shown for control valve.
Fig. 3 represents the flow chart of the exemplary series of steps of the energy per unit flow gradients shown for determining thermal energy converter.
Fig. 4 represents to show and puts the flow chart of the exemplary series of steps of energy exchanged by thermal energy converter for determining in preset time.
Fig. 5 represents the flow chart of the exemplary series of steps of the aperture shown for control valve, comprises the efficiency of the Energy transfer checked in fluid circuit.
Fig. 6 represents the flow chart of the exemplary series of steps of the efficiency shown for checking the Energy transfer in fluid circuit.
The threshold value that Fig. 7 represents the aperture shown for determining control valve and/or the flow chart calibrated for the exemplary series of steps of the control signal of the aperture of control valve.
Fig. 8 represents the flow chart of the exemplary series of steps of the threshold value of the aperture shown for determining control valve.
Fig. 9 represents the flow chart showing and calibrate for the exemplary series of steps of the control signal of the actuator of control valve.
Figure 10 represents the flow chart of the exemplary series of steps of the aperture shown for controlling the valve had in the fluid circuit of heat exchanger.
Figure 11 represents the flow chart of the exemplary series of steps of the aperture shown for controlling the valve had in the fluid circuit of cooler.
Figure 12 represents the curve map of the example showing the energy per unit flow curve with different time points, for determining for different flow level and the energy per unit flow gradients of the amount of the energy of correspondence that exchanged by thermal energy converter.
Figure 13 represents the curve map of the example showing the energy per unit flow curve with different time points, for determine calibration be used for control valve actuator control signal process in different energy per unit flow gradients.
Detailed description of the invention
In FIG, Reference numeral 100 refers to the HVAC system with fluid circuit 101, fluid circuit 101 comprise be connected to each other by pipe pump 3, valve 10, thermal energy converter 2(is such as heating or the heat exchanger of cool room) and another thermal energy converter alternatively in cooler 5 form.Valve 10 is provided with actuator 1, such as electro-motor, and for opening and closing valve 10, and therefore the diverse location of use valve 10 controls the flow by fluid circuit 101.In addition, (multiple) pump 3 itself can change the flow by fluid circuit 101.As schematically shown, HVAC system 100 also comprises the building control system 4 being connected respectively to valve 10 or actuator 11.It will be appreciated by those skilled in the art that the description of HVAC system 100 simplifies very much, and HVAC system 100 can comprise multiple fluid circuit 101, there is one or more pump 3, valve 19, thermal energy converter 2 and optional cooler 5 in each case.
As Fig. 1 schematically shows, thermal energy converter 2 is provided with two temperature sensors 21,22, is arranged in the porch of thermal energy converter 2, for measuring the input temp of the fluid entering thermal energy converter 2
t in , and be arranged in the exit of thermal energy converter 2, for measuring the output temperature of the fluid leaving thermal energy converter 2
t out .Such as, fluid is the liquid heat-transfer mediums such as such as water.
Fluid circuit 101 also comprises the flow φ being respectively used to measure by valve 10 or fluid circuit 101, i.e. the flow sensor 13 of fluid flow rate.According to embodiment, flow sensor 13 is arranged in the valve 10 or valve 10 place, or be arranged in be connected to valve 10 pipe portion 12 in or place of pipe portion 12.Such as, flow sensor 13 is sonac or thermal transfer sensors.
In FIG, Reference numeral 1 refers to and is respectively used to control valve 10 or actuator 11 with the control device of the aperture of regulating valve 10 (or position).Therefore, control device 1 regulates by valve 10 with therefore by the flow φ of thermal energy converter 2, i.e. rate of flow of fluid.Therefore, control device 1 regulates the amount of the heat energy exchanged by thermal energy converter 2 and its environment.According to embodiment, control device 1 is arranged in valve 10 place, such as valve 10 integral part or be attached to valve 10, or control device 1 is arranged in the pipe portion 12 being connected to valve 10.
Control device 1 comprises the microprocessor or other programmable unit with program and data storage.Control device 1 comprises various functional module, comprises gradients setup device 14, control module 15 and calibration module 16.Preferably, functional module is embodied as and is programmed software module.Be programmed software module and comprise computer code for controlling one or more processor or other programmable unit of control device 1, this will illustrate in greater detail hereinafter.Computer code stores on a computer-readable medium, and computer-readable medium is connected to control device 1 with fixing or removable mode.But it will be appreciated by those skilled in the art that in alternative embodiments, functional module can be implemented partially or completely through hardware component.
As shown in Figure 1, flow sensor 13 is connected to control device 1, for providing flow to control device 1
φmeasured value timely or at that time.And control device 1 is connected to actuator 11, for actuator 11 supply control signal
z,open and/or closed valve 10 is carried out, i.e. the aperture (or position) of regulating valve 10 to control actuator 11.
And the temperature sensor 21,22 of thermal energy converter 2 is connected to control device 1, for providing the input temp of the fluid entering or leave thermal energy converter 2 respectively to control device 1
t in and output temperature
t out measured value timely or at that time.
Preferably, control device 1 is also connected to building control system 4, for receiving controling parameters from building control system 4, such as, for user's setting and/or the measured value of expecting room temperature, such as loading demand (from zero BTU to maximum BTU) or currently to be made for carrying fluid by the conveying capacity of fluid circuit 101 by pump 3
e t , as measured by energy measuring unit 31.Based on being used by multiple pump 3 and the conveying capacity E received from multiple fluid circuit 101 (by sending with push-model or receiving with pull-mode) at building control system 4
t, building control system 4 is configured to the conveying capacity E such as by using based on all pumps 3 by HVAC system 100
ttotal value set the flow of the valve 10 by one or more fluid circuit 101
φ, thus optimize the gross efficiency of HVAC system 100.In the embodiment substituted or add, the energy sensor being arranged in pump 3 place is directly connected to control device 1, for providing conveying capacity to control device 1
e t current measurement value.
In paragraph below describing referring to figs. 2 to Figure 11, for is performed by the functional module of control device 1 possible series of steps, for the aperture (or position) of control valve 10, thus adjustment is by the flow of thermal energy converter 2
φ.
As shown in Figure 2, in step s3, the aperture of control device 1 control valve 10.Specifically, in step S31, energy per unit flow gradients determined by gradients setup device 14
.In step s 32, control module 15 is according to energy per unit flow gradients
the aperture of control valve 10.
As shown in Fig. 3 and Figure 12, in order to determine energy per unit flow gradients
, in step S311, gradients setup device 14 is determined in limiting time
t n-1 by the flow of valve 10
φ n-1 .According to embodiment, gradients setup device 14 passes through in limiting time
t n-1 flow sensor 13 carries out sampling, poll or reading, or is included in limiting time by reading
t n-1 the flow measured by flow sensor 13
φ n-1 data storage, determine flow
φ n-1 .
In step 312, gradients setup device 14 is determined in limiting time
t n-1 the amount of the energy exchanged by thermal energy converter 2
e n-1 .
In step 313, gradients setup device 14 according to flow sensor 13 determine limit the t of time subsequently
nby the flow of valve 10
φ n .
In a step 314, the time subsequently in restriction determined by gradients setup device 14
t n the amount E of the energy exchanged by thermal energy converter 2
n.
In step 315, based on to limiting time
t n-1 ,
t n determined flow
φ n-1 ,
φ n with exchanged energy
e n-1 ,
e n , gradients setup device 14 is for limiting time
t n calculate energy per unit flow gradients
.
Subsequently, gradients setup device 14 is by determining for limiting time
t n+1 flow
φ n+1 with exchanged energy
e n+1 proceed step S313 and S314, and calculate in step 315 for limiting time t
n+1energy per unit flow gradients
.Therefore, as shown in figure 12, for continuous print measuring intervals of TIME
or
, respectively repeatedly and determine energy per unit flow gradients constantly
, the wherein length of measuring intervals of TIME, i.e. Measuring Time
t n-1 ,
t n ,
t n+1 between duration such as in the scope of 1 second to 30 seconds, such as 12 seconds.
As shown in Figure 4, in order to determine in limiting time
t n the amount of the energy exchanged by thermal energy converter
e n , in step S3141 and S3142, gradients setup device 14 is determined at limiting time t
nrespectively at the input temp that entrance or the exit of thermal energy converter 2 are measured
t in and output temperature
t out .According to embodiment, gradients setup device 14 passes through in limiting time
t n temperature sensor 21,22 is sampled, poll or reading, or be included in limiting time by reading
t n the input temp measured by temperature sensor 21,22
t in and output temperature
t out data storage, determine input temp
t in and output temperature
t out.
In step S3143, gradients setup device 14 calculates input temp
t in and output temperature
t out between the temperature difference
.
In step S3144, gradients setup device 14 is according to for limiting time
t n determined flow
φ n and the temperature difference
, calculate the amount of the energy exchanged by thermal energy converter 2
.
According in the embodiment of Fig. 5, in step S31, determine energy per unit flow gradients
before, control module 15 checks Energy transfer efficiency in step s 30, and carrys out the aperture of control valve subsequently according to Energy transfer efficiency.If Energy transfer efficiency is enough, then processes and continue in step S31; Otherwise the aperture opening and/or reduce valve 10 further of stop valve 10, such as, by reducing control signal Z with the decrement limited.
As shown in Figure 6, in order to check Energy transfer efficiency, in step S301, control module 15 measures the conveying capacity E being made to be arrived by fluid circuit 101 for conveying fluid thermal energy converter 2 by pump 3
t.According to embodiment, control module 15 is passed through limiting time
t n energy measuring unit 31 carry out poll or reading, or be included in limiting time by reading
t n the conveying capacity E measured by energy measuring unit 31
tdata storage, determine conveying capacity E
t.
In step s 302, control module 15 or gradients setup device 14 are determined respectively at limiting time t
nthe amount of the energy exchanged by thermal energy converter 2
e n .
In step S303, control module 15 is according to determined conveying capacity
e t with the amount of exchanged energy
e n carry out energy difference calculated value
e b =E n -E t .
In step 305, control module 15 is passed through calculated energy differences
e b with efficiency threshold K
erelatively, Energy transfer efficiency is checked.Such as, if energy differences
e b exceed efficiency threshold
, such as
, then think that energy efficiency is positive.According to embodiment, efficiency threshold K
efor to be stored in control device 1 or from the fixed value of external source input.
According in the embodiment of Fig. 7, before the step S3 of the aperture for control valve, carrying out optional step S1 and/or S2, for determining one or more slope threshold value and/or calibration control signal Z value, carrying out open and/or closed valve 10 to control actuator 11.Preferably, in order to Continuous optimization ground system accuracy, first the calibrating sequence comprising step S1 and/or S2 not only performs when starting, and automatically again starts when there is the event limited, particularly when limiting system variable change, the input temp such as sensed by temperature sensor 21
t in change; From the changing fast and/or significantly of various inputs of building control system 4, such as, return air themperature, external air temperature, the temperature of air side that strides across heat exchanger 2 decline; Or represent any signal of loading condition change.
As shown in Figure 8, in order to determine (multiple) slope threshold value of the aperture of control valve, in step slo, valve is opened from original closed position by control module 15.Specifically, in this starting stage, valve 10 is opened to and limits aperture level and/or open with the restriction increment of the value of control signal Z.
In step s 11, during this original state, initial time point t determined by gradients setup device 14
0the energy per unit flow gradients of (see Figure 12)
, as described above with reference to Figure 3.
In step s 12, control module 15 is based on to initial time point
t 0 the energy per unit flow gradients determined
set (multiple) slope threshold value.Such as, for heat exchanger, by slope threshold value K
0be set as energy per unit flow gradients
constrain percentage, such as C=10%.Accordingly, for cooler 5, in each case by lower slope threshold k
lwith upper slope threshold value K
hbe set as constrain percentage C, D of energy per unit flow gradients,
, such as D=1%, and
, such as
.As shown in figure 12, slope threshold value K
0qualified point P
k, at a P
kplace, for flow φ
kwith the amount E of the energy exchanged by thermal energy converter 2
k, energy per unit flow gradients
equal slope threshold value K
0.
In the more not preferred embodiment substituted, slope threshold value
k 0 ,
k l ,
k h for distributing to restriction (constant) value of thermal energy converter 2 especially, such as, input and/or be stored in the type specific constant in the data storage of control device 1 or thermal energy converter 2.
As shown in Fig. 9 and Figure 13, in order to calibrate the value of control signal Z, in the step s 21, control signal Z is set as the maximum control signal value Z of restriction by calibration module 16
max, such as 10V.Therefore, in calibration phase, valve 10 is urged to maximum opening position by actuator 11, such as, be urged to and have the maximum stream flow φ corresponding with maximum BTU (British Thermal unit)
maxfully open position.
In step S22, as described in reference diagram 3 above, the energy per unit flow gradients for current valve opening determined by gradients setup device 14
.
In step S23, calibration module 16 checks determined energy per unit flow gradients
whether be greater than the slope threshold value K of restriction
0.If
, then process and continue in step s 25; Otherwise, if
, then process and continue in step s 24 which.
In step s 24 which, calibration module 16 reduces the aperture of valve, such as, by such as control signal Z being decreased to the horizontal Z of lower control signal with 0.1V with the decrement limited
n+1, Z
n, and by reducing flow φ to having
n+1, φ
nthe reduction aperture determination energy per unit flow gradients of valve 10
and continue.
In step s 25, when such as having flow
φ n control signal Z
n, valve 10 is set as energy per unit flow gradients
exceed the slope threshold value of restriction
k 0 aperture time, calibration module 16 divides by the current aperture level to valve 10 the maximum Z being used in control signal
maxcalibrate control signal Z.Such as, if to have flow φ
nvalve 10 80% aperture horizontally through the control signal Z of 8V
nrealize
, then the maximum Z of the such as 10V of control signal Z will be used for
maxdistribute to the aperture level of 80%.When such as according to the requirement from the loading demand of building control system 4, control signal Z being set as its maximum horizontal Z subsequently
maxtime, valve 10 is set to there is flow φ
naperture level, this produce be equal to or greater than limit slope threshold value K
0energy per unit flow gradients
.
Figure 10 shows the exemplary series of steps S3H of the aperture of the valve for controlling the heat converter 2 in heat exchanger form.
In step S30H, valve 10 is opened from original closed position by control module 15.Specifically, in this starting stage, valve 10 is opened to and limits aperture level and/or open with the restriction increment of the value of control signal Z.
In step S31H, as described in reference diagram 3 above, the energy per unit flow gradients for current valve opening determined by gradients setup device 14
.
In step S32H, control module 15 checks determined energy per unit flow gradients
whether be less than and limit slope threshold value K
0.
If energy per unit flow gradients
be more than or equal to and limit slope threshold value K
0, then process and continue in step S30H to open valve 10 further by continuing to increase control signal Z.Otherwise, if energy per unit flow gradients
lower than restriction slope threshold value K
0, then opening further and/or reducing the aperture of valve 10 and continue in step S33H by stop valve 10 is processed, such as, by reducing control signal Z to limit decrement.
Figure 11 shows the exemplary series of steps S3C of the aperture of the valve for controlling the heat converter in cooler 5 form.
In step S30C, valve 10 is opened from original closed position by control module 15, or reduces aperture from initial open position.Specifically, in this starting stage, open valve 10 respectively or reduce its aperture to restriction aperture level, and/or open with the restriction increment (or decrement) of the value of control signal Z or reduce.
In step S31C, as described in reference diagram 3 above, the energy per unit flow gradients for current valve opening determined by gradients setup device 14
.
In step S32C, control module 15 checks determined energy per unit flow gradients
whether be less than and limit lower slope threshold k
lor be greater than the upper slope threshold value K of restriction
h.
If energy per unit flow gradients
be more than or equal to and limit lower slope threshold k
land be less than or equal to slope threshold value K
h, then process by continuing respectively to increase control signal Z to open valve 10 further or to continue to reduce control signal Z with further shutoff valve 10, and continue in step S30C.Otherwise, if energy per unit flow gradients
be less than linear lower slope threshold k
lor be greater than and limit upper slope threshold value K
h, then process by stopping respectively opening or closing valve 10 further, and continue in step S33C, because cooler 5 no longer works in higher efficiency range.
It should be noted that, in the description, computer program code is associated with certain functional modules, and series of steps provides with particular order, but it will be appreciated by those skilled in the art that computer program code can differently be formed, and the order of at least some step without departing from the scope of the invention, can be changed.
Claims (15)
1. the aperture (S3) controlling the valve (10) in heating ventilation and air-conditioning system (100) is to regulate the fluid flow of the thermal energy converter (2) by heating ventilation and air-conditioning system (100)
φand adjust the method for the amount E of the energy exchanged by described thermal energy converter (2), described method comprises:
Determine (S31) energy per unit flow gradients
; And
According to described energy per unit flow gradients
control the aperture (S32) of described valve (10).
2. method according to claim 1, wherein determines (S31) described energy per unit flow gradients
be included in very first time point and measure (S311) flow by described valve (10)
φ 1, and determine that (S312) puts the amount of the energy exchanged by described thermal energy converter (2) in this very first time
e 1 ; At the second time point subsequently, measure (S313) flow by described valve (10)
φ 2 , and determine the amount of the energy that (S314) is exchanged by described thermal energy converter (2) at this second time point
e 2 ; And according to the flow determined very first time point and the second time point
φ 1 ,
φ 2 and positive energy exchange
e 1 ,
e 1 , calculate (S315) energy per unit flow gradients
.
3. method according to claim 1 and 2, wherein determines that the amount of the energy that (S314) is exchanged by described thermal energy converter (2) comprises the flow measured by described valve (10)
φ(S313), determine that (S3143) enters the input temp of the fluid of described thermal energy converter (2)
t in with the output temperature of fluid leaving described thermal energy converter (2)
t out between the temperature difference
, and based on by the flow φ of described valve (10) and the temperature difference
calculate the amount of the energy that (S3144) is exchanged by described thermal energy converter
.
4. method according to claim 1 and 2, also comprises measurement (S301) for carrying fluid by the conveying capacity of described heating ventilation and air-conditioning system (100)
e t ; Determine the amount E of the energy that (S302) is exchanged by described thermal energy converter (2); Based on described conveying capacity
e t with the amount of the energy exchanged by described thermal energy converter (2)
edetermine (S303) energy differences
, by energy differences
e b compare (S304) with efficiency threshold; And according to the described aperture relatively controlling described valve (10).
5. method according to claim 1 and 2, the wherein aperture (S3H) of control valve (10), to regulate the fluid flow of the heat exchanger by described heating ventilation and air-conditioning system (100)
φ, when increasing the aperture of described valve (10), determine (S31H) described energy per unit flow gradients
; And pass through described energy per unit flow gradients
compare (S32H) with slope threshold value and work as described energy per unit flow gradients
lower than the increase stopping (S33H) described aperture during described slope threshold value, control the aperture of described valve (10).
6. method according to claim 1 and 2, wherein controls (S3C) described valve (10) to regulate the fluid flow of the cooler (5) by described heating ventilation and air-conditioning system (100)
φ; When increasing or reduce the aperture of described valve (10), determine (S31C) described energy per unit flow gradients
; And pass through described energy per unit flow gradients
compare (S32C) with lower slope threshold value and upper slope threshold value, and when described energy per unit flow gradients
lower than described lower slope threshold value or the reduction or the increase that stop (S33C) described aperture higher than during described upper slope threshold value respectively, control the aperture of described valve (10).
7. method according to claim 5, also comprises and determines (S1) described slope threshold value as follows: when described valve (10) is opened from closed position, determines the energy per unit flow gradients of (S11) initial time point
, and based on the energy per unit flow gradients determined at described initial time point
set (S12) described slope threshold value.
8. method according to claim 1 and 2, also comprise following calibration (S2) control signal (Z) level, described control signal (Z) level is used for the actuator (11) that the described valve (10) of described valve (10) is opened in control, by the restriction maximum that described control signal (Z) setting (S21) is for described valve (10) being placed into maximum opening position, determining described energy per unit flow gradients
time, reduce the value of (S24) described control signal (Z) to reduce the aperture of described valve (10), and distribute (S25) to described energy per unit flow gradients by the maximum of described control signal
become the aperture setting of the described valve (10) being equal to or greater than slope threshold value.
9. one kind for the aperture that controls the valve (10) in heating ventilation and air-conditioning system (100) to regulate the fluid flow of the thermal energy converter (2) by described heating ventilation and air-conditioning system (100)
φand adjust the amount of the energy exchanged by described thermal energy converter (2)
econtrol device (1), described control device (1) comprising:
Gradients setup device (14), is configured to determine energy per unit flow gradients
; And
Control module (15), is configured to according to described energy per unit flow gradients
control the aperture of described valve (10).
10. control device according to claim 9 (1), wherein, described gradients setup device (14) is configured to the flow by described valve (10) according to determining at very first time point
φ 1 , put the amount of the energy exchanged by described thermal energy converter (2) determined in described very first time
e 1 , the flow by described valve (10) to determine at the second time point subsequently
φ 2 , and the amount of energy that exchanged by described thermal energy converter (2) at this second time point
e 2 , calculate energy per unit flow gradients
.
11. control device (1) according to claim 9 or 10, wherein said gradients setup device (14) is configured to according to the flow by described valve (10)
φand the temperature difference
measurement, calculate the amount of the energy exchanged by described thermal energy converter (2)
, the described temperature difference is the input temp at the fluid entering described thermal energy converter (2)
t in with the output temperature leaving described thermal energy converter (2)
t out between to determine.
12. control device (1) according to claim 9 or 10, wherein, in order to regulate the fluid flow of the heat exchanger by described heating ventilation and air-conditioning system (100)
φ, described control module (15) is configured to the aperture controlling described valve (10) as follows: when increasing the aperture of described valve (10), make described gradients setup device (14) determine described energy per unit flow gradients
, by described energy per unit flow gradients
compare with slope threshold value, and when described energy per unit flow gradients
lower than the increase stopping described aperture during described slope threshold value.
13. control device (1) according to claim 9 or 10, wherein, in order to regulate the fluid flow φ of the cooler (5) by described heating ventilation and air-conditioning system (100), described control module (15) is configured to the aperture controlling described valve (10) as follows: when increasing or reduce the aperture of described valve (10), make described gradients setup device (14) determine described energy per unit flow gradients
; And pass through described energy per unit flow gradients
compare with lower slope threshold value and upper slope threshold value, and when described energy per unit flow gradients
lower than described lower slope threshold value or higher than the reduction or the increase that stop described aperture during described upper slope threshold value respectively.
14. control device according to claim 12 (1), wherein said control module (15) is also configured to determine described slope threshold value as follows: when described valve (10) is opened from closed position, makes described gradients setup device (14) determine the energy per unit flow gradients of initial time point
, and based on the energy per unit flow gradients determined at described initial time point
set described slope threshold value.
15. control device (1) according to claim 9 or 10, also comprise the calibration module (16) being configured to calibrate control signal level (Z), described control signal level is used for the actuator (11) that the described valve (10) of described valve (10) is opened in control, by described control signal (Z) being set as the restriction maximum for described valve (10) being placed into maximum opening position, determine described energy per unit flow gradients making described gradients setup device (14)
time, reduce the value of described control signal (Z) to reduce the aperture of described valve (10), and the maximum of described control signal (Z) is distributed to described energy per unit flow gradients
become the aperture setting of the described valve (10) being equal to or greater than slope threshold value.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH19262010 | 2010-11-17 | ||
| CH1926/10 | 2010-11-17 | ||
| PCT/CH2011/000246 WO2012065275A1 (en) | 2010-11-17 | 2011-10-18 | Device and method for controlling opening of a valve in an hvac system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103228996A CN103228996A (en) | 2013-07-31 |
| CN103228996B true CN103228996B (en) | 2015-12-16 |
Family
ID=43710375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180055591.7A Active CN103228996B (en) | 2010-11-17 | 2011-10-18 | For controlling the apparatus and method of the aperture of the valve in heating ventilation and air-conditioning system |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9631831B2 (en) |
| EP (1) | EP2641027B1 (en) |
| CN (1) | CN103228996B (en) |
| CA (1) | CA2811775A1 (en) |
| DK (1) | DK2641027T3 (en) |
| RU (1) | RU2573378C2 (en) |
| WO (1) | WO2012065275A1 (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102163548B1 (en) * | 2010-10-01 | 2020-10-12 | 콤스코프 테크놀로지스, 엘엘씨 | Distributed antenna system for MIMO signals |
| WO2012160598A1 (en) * | 2011-05-23 | 2012-11-29 | 三菱電機株式会社 | Air conditioner |
| CH706146A2 (en) * | 2012-02-29 | 2013-08-30 | Oblamatik Ag | Method and system for tempering components. |
| US9534795B2 (en) | 2012-10-05 | 2017-01-03 | Schneider Electric Buildings, Llc | Advanced valve actuator with remote location flow reset |
| US10295080B2 (en) | 2012-12-11 | 2019-05-21 | Schneider Electric Buildings, Llc | Fast attachment open end direct mount damper and valve actuator |
| CN105531520B (en) * | 2013-03-15 | 2018-08-17 | 施耐德电气建筑有限公司 | Advanced valve actuator with integrated energy metering |
| US9658628B2 (en) | 2013-03-15 | 2017-05-23 | Schneider Electric Buildings, Llc | Advanced valve actuator with true flow feedback |
| CN105378575B (en) * | 2013-05-16 | 2018-09-07 | 贝利莫控股公司 | Device and method for the aperture for controlling the valve in HVAC system |
| US10627129B2 (en) * | 2015-09-01 | 2020-04-21 | Belimo Holding Ag | Method and system for operating a thermal energy exchanger |
| ITUB20153497A1 (en) | 2015-09-09 | 2017-03-09 | Fimcim Spa | AIR-CONDITIONING AND / OR HEATING SYSTEM AND PROCESS OF CONTROL OF THE SAME PLANT |
| ITUB20153506A1 (en) * | 2015-09-09 | 2017-03-09 | Fimcim Spa | AIR-CONDITIONING AND / OR HEATING SYSTEM AND PROCESS OF CONTROL OF THE SAME PLANT |
| US10712042B2 (en) * | 2017-08-25 | 2020-07-14 | Johnson Controls Technology Company | Temperature control valve |
| US20210215372A1 (en) * | 2018-06-12 | 2021-07-15 | Belimo Holding Ag | Method and system for controlling energy transfer of a thermal energy exchanger |
| US10739017B2 (en) | 2018-08-20 | 2020-08-11 | Computime Ltd. | Determination of hydronic valve opening point |
| EP3623896B1 (en) * | 2018-09-12 | 2021-04-28 | Fimcim S.P.A. | Method and device for controlling the flow of a fluid in an air-conditioning and/or heating system |
| US11149976B2 (en) | 2019-06-20 | 2021-10-19 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for flow control in an HVAC system |
| US11092354B2 (en) | 2019-06-20 | 2021-08-17 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for flow control in an HVAC system |
| US11391480B2 (en) | 2019-12-04 | 2022-07-19 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for freeze protection of a coil in an HVAC system |
| US11624524B2 (en) | 2019-12-30 | 2023-04-11 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for expedited flow sensor calibration |
| US11519631B2 (en) | 2020-01-10 | 2022-12-06 | Johnson Controls Tyco IP Holdings LLP | HVAC control system with adaptive flow limit heat exchanger control |
| EP4396500A1 (en) * | 2021-08-30 | 2024-07-10 | Belimo Holding AG | A method of operating an hvac system |
| WO2023180095A1 (en) | 2022-03-21 | 2023-09-28 | Belimo Holding Ag | Method and devices for controlling a flow control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2811153A1 (en) * | 1978-03-15 | 1979-09-20 | Wolfgang Behm | Automatic room heating control system - uses supply and return flow temps. under stationary conditions to establish flow temp. and control circuit |
| GB2068601A (en) * | 1980-02-04 | 1981-08-12 | Landis & Gyr Ag | Heating systems |
| GB2244152A (en) * | 1990-03-30 | 1991-11-20 | Toshiba Kk | Multiple unit air conditioning system |
| CN101354801A (en) * | 2007-07-24 | 2009-01-28 | 株式会社山武 | Flow control valve and flow control method |
| DE102009004319A1 (en) * | 2009-01-10 | 2010-07-22 | Henry Klein | Method for performing hydraulic balance of heat exchanger of circulatory composite system in building, involves detecting return temperature at heat exchanger and controlling volumetric flow rate by heat exchanger as function of temperature |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4215408A (en) * | 1977-12-12 | 1980-07-29 | United Technologies Corporation | Temperature control of unoccupied living spaces |
| US4279381A (en) * | 1979-09-28 | 1981-07-21 | Yang Yueh | Method for uniformly heating a multi-level building |
| SE446905B (en) * | 1985-04-29 | 1986-10-13 | Tour & Andersson Ab | SETS AND MEASURES TO REGULATE THE FLOOD RESP TEMPERATURE Separately AT FLOOR HEATING INSTALLATIONS |
| FI92868C (en) * | 1993-07-07 | 1996-02-06 | Abb Installaatiot Oy | Method and apparatus for controlling the heat transfer in an air-exchange or air-conditioning system |
| US6352106B1 (en) | 1999-05-07 | 2002-03-05 | Thomas B. Hartman | High-efficiency pumping and distribution system incorporating a self-balancing, modulating control valve |
| US7426910B2 (en) * | 2006-10-30 | 2008-09-23 | Ford Global Technologies, Llc | Engine system having improved efficiency |
| US7848853B2 (en) * | 2008-05-13 | 2010-12-07 | Solarlogic, Llc | System and method for controlling hydronic systems having multiple sources and multiple loads |
| WO2011099065A1 (en) * | 2010-02-10 | 2011-08-18 | 三菱電機株式会社 | Air conditioner |
| US9995493B2 (en) * | 2010-04-14 | 2018-06-12 | Robert J. Mowris | Efficient fan controller |
| JP5370560B2 (en) * | 2011-09-30 | 2013-12-18 | ダイキン工業株式会社 | Refrigerant cycle system |
| CN105378575B (en) * | 2013-05-16 | 2018-09-07 | 贝利莫控股公司 | Device and method for the aperture for controlling the valve in HVAC system |
-
2011
- 2011-10-18 DK DK11773661.1T patent/DK2641027T3/en active
- 2011-10-18 EP EP11773661.1A patent/EP2641027B1/en active Active
- 2011-10-18 RU RU2013127193/12A patent/RU2573378C2/en not_active IP Right Cessation
- 2011-10-18 WO PCT/CH2011/000246 patent/WO2012065275A1/en active Application Filing
- 2011-10-18 CN CN201180055591.7A patent/CN103228996B/en active Active
- 2011-10-18 CA CA2811775A patent/CA2811775A1/en not_active Abandoned
- 2011-10-18 US US13/885,925 patent/US9631831B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2811153A1 (en) * | 1978-03-15 | 1979-09-20 | Wolfgang Behm | Automatic room heating control system - uses supply and return flow temps. under stationary conditions to establish flow temp. and control circuit |
| GB2068601A (en) * | 1980-02-04 | 1981-08-12 | Landis & Gyr Ag | Heating systems |
| GB2244152A (en) * | 1990-03-30 | 1991-11-20 | Toshiba Kk | Multiple unit air conditioning system |
| CN101354801A (en) * | 2007-07-24 | 2009-01-28 | 株式会社山武 | Flow control valve and flow control method |
| DE102009004319A1 (en) * | 2009-01-10 | 2010-07-22 | Henry Klein | Method for performing hydraulic balance of heat exchanger of circulatory composite system in building, involves detecting return temperature at heat exchanger and controlling volumetric flow rate by heat exchanger as function of temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012065275A1 (en) | 2012-05-24 |
| RU2573378C2 (en) | 2016-01-20 |
| CA2811775A1 (en) | 2012-05-24 |
| US20140083673A1 (en) | 2014-03-27 |
| EP2641027B1 (en) | 2017-11-22 |
| EP2641027A1 (en) | 2013-09-25 |
| CN103228996A (en) | 2013-07-31 |
| RU2013127193A (en) | 2014-12-27 |
| DK2641027T3 (en) | 2018-03-05 |
| US9631831B2 (en) | 2017-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103228996B (en) | For controlling the apparatus and method of the aperture of the valve in heating ventilation and air-conditioning system | |
| US9874880B2 (en) | Device and method for controlling opening of a valve in an HVAC system | |
| CN107820556B (en) | Method and system for determining characteristic parameters of a hydraulic network | |
| DK2726792T3 (en) | Method and device for balancing a group of consumers in a fluidtransportsystem | |
| CN104995458B (en) | For the method and apparatus for the group for balancing the load in fluid transport system | |
| EP3276267B1 (en) | Automatic balance valve assembly, method for controlling water flow and computer-readable medium | |
| JP2006509294A5 (en) | ||
| JP2009031866A (en) | Flow control valve and flow control method | |
| RU2014126365A (en) | METHOD FOR REGULATING THE ROOM TEMPERATURE IN ONE OR A GROUP OF MULTIPLE ROOMS, AND ALSO A DEVICE FOR PERFORMING THE METHOD | |
| US9702569B2 (en) | Method for the temperature control of components | |
| CN102620380A (en) | Air conditioning controlling device and method | |
| US20180180302A1 (en) | System and method for balancing temperature within a building | |
| EP3073205B1 (en) | Method for operating a hydronic heating and/or cooling system, control valve and hydronic heating and/or cooling system | |
| TWI677650B (en) | Indoor temperature control system | |
| EP1944594A2 (en) | Method and apparatus for measuring the effective heat transfer in a system having a fluid circuit | |
| GB2495905A (en) | Water heating system arranged to heat mains pressure water using a thermal store and a heat exchanger | |
| US20210215372A1 (en) | Method and system for controlling energy transfer of a thermal energy exchanger | |
| KR101263240B1 (en) | A error adjusting device using a integration calorimeter and method thereof | |
| CN114222891B (en) | Method and system for balancing a torus network | |
| CN111512093B (en) | Control system for HVAC including air handling unit and terminal unit and method of operating the control system | |
| JP3865861B2 (en) | Automatic control method for air conditioning equipment | |
| CN113405153A (en) | Control method and device for centralized cooling/heating system | |
| JP2012013254A (en) | Control method of air conditioning system and air conditioning system | |
| JP2015170021A (en) | Flow controller and flow controlling method | |
| CN116989443A (en) | Self-learning feedback calibration method and device for regional energy heating and cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |